Very fine pitch test probes are always used for contacting the very close test points, the feet or pad are very small distance printed or soldered on BGA chips or connectors, which can't be touched by standard and big test probes. These fine pitch probes are usually fixed without any receptacle and can reduce enough space for pitch. Fine pitch pogo pins series semiconductor probes are composed of high-precision and uncommon materials, G4 barrels and Palladium alloy with high-current capacity. Those special test probes bring you.